There are no strict dietary taboos after a cold, but it is not recommended to eat foods with low temperatures, foods with too much sweetness, and spicy and irritating foods. 1. Low-temperature foods: During a cold, the mucous membranes in the throat area of the human body are more sensitive, so if you eat low-temperature foods at this time, it is easy to irritate the mucous membranes and aggravate the discomfort of the cold. 2. Excessively sweet food: too sweet food will increase the viscosity of phlegm, which is not conducive to phlegm discharge. If the phlegm can’t be discharged smoothly, it will aggravate the symptoms and even cause the cold to recur. Therefore, during the cold period, you should not eat too sweet food, such as candy, cake and so on. 3. Spicy and irritating foods: Some foods such as chili peppers and garlic can irritate the mucous membranes of the pharynx, which will aggravate the symptoms of colds if consumed during colds, so try to avoid eating these spicy and irritating foods during colds. The body should try to eat some light and easy to digest food after a cold, which can promote the body to heal. If the symptoms of cough and fever persist after a cold, you need to consult a doctor in time.